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en.wikipedia.org/wiki/Water_purification

Water purification is the process of removing undesirable chemicals, biological contaminants, ..... Water conditioning: This is a method of reducing the effects of hard water. In water systems subject to heating hardness salts can be deposited as ...

water.usgs.gov/edu/hardness.html

Dec 15, 2016 ... The simple definition of water hardness is the amount of dissolved calcium and magnesium in the water. Hard water is high in dissolved ...

www.quora.com/Why-does-water-make-chewing-gum-hard

Companies carefully guard their recipes for making chewing gum, but all chewing gum has the ... Since the gum base is so sensitive to temperature, it gets stiff.

www.tapintoquality.com/faqs/hardness-of-water

The hardness of water varies widely throughout the United States, but for the most part, the states of the southwest and upper Midwest have hard water.

www.smh.com.au/environment/water-issues/toilettotap-recycled-water-gets-the-hard-sell-20130309-2fsnp.html

Mar 10, 2013 ... A $10 million drive, partly funded by the federal government, aims to convince the community that introducing recycled water into drinking ...

explorecuriocity.org/Explore/ArticleId/4232/why-is-that-when-we-add-water-to-a-dry-flour-it-gets-hard-4232.aspx

Feb 27, 2012 ... Many people have noticed that when you add water to flour it becomes harder. When you mix water and flour, it becomes a heterogenous ...

www.esalon.com/blog/hard-vs-soft-water

Feb 17, 2015 ... In actual fact, there isn't just one type of water flowing through your drain. Different cities, states and countries can all have either hard or soft ...

www.pinterest.com/explore/hard-water

See more about Hard water stains, Water stains and Hard water cleaner. ... See More. This stuff gets hard water spots off your glass shower door ;-) no hard.

www.nytimes.com/2015/05/12/science/recycled-drinking-water-getting-past-the-yuck-factor.html

May 8, 2015 ... Filtering membranes in an Orange County, Calif., water purification facility. The plant opened in 2008 during the state's last drought.

www.chagrinvalleysoapandsalve.com/idascorner/shampoo-hair/how-does-your-water-affect-your-hair

Soaps and detergents behave differently in hard water. Soaps can form a scum in hard water that will not rinse away easily. Detergents react less to the minerals ...